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R thread Self Drilling Anchor Bars
Hollow anchor bar is the body of a self-drilling anchor, as a hollow steel tube with an outer round thread, hollow anchor has the sacrificial anchor bit connected at one side, plate and nut connected at the other; two hollow anchor bars could be connected together via a coupling, for duties that requiring longer anchors.
The Self Drilling Anchor system is comprised of a hollow threaded anchor bar with a sacrificial drill bit that performs drilling, anchoring and grouting in a single operation. Self drilling anchor system is mainly used in slope stabilization, tunneling pre-support, foundations with micro piles etc jobs, which is widely used in mining, tunneling, railway, metro construction etc projects.
Features
• Stable quality;
• Thread is compatible with ISO and other international standards;
• Good mechanical performance.
Applications
Pre-supporting, micropiling for foundation underpinning, slope anchorage, etc.
Parameters
| |||||
Size | O.D (mm) | I.D (mm) | Ultimate Load (kN) | Yield Load (kN) | Weight (kg/meter) |
R25N-14 | 25.0 | 14.0 | 200 | 150 | 2.3 |
R32L-22 | 32.0 | 22.0 | 210 | 160 | 2.8 |
R32N-21 | 32.0 | 21.0 | 280 | 230 | 2.9 |
R32N-18.5 | 32.0 | 18.5 | 280 | 230 | 3.4 |
R32S-17.5 | 32.0 | 17.5 | 360 | 280 | 3.5 |
R32S-15 | 32.0 | 15.0 | 360 | 280 | 4.1 |
R32SS-14 | 32.0 | 14.0 | 405 | 350 | 4.3 |
R38N-21 | 38.0 | 21.0 | 500 | 400 | 4.8 |
R38N-19 | 38.0 | 19.0 | 500 | 400 | 5.5 |
R38S-18 | 38.0 | 18.0 | 560 | 460 | 6.0 |
R51L-38 | 51.0 | 38.0 | 550 | 450 | 6.0 |
R51L-36 | 51.0 | 36.0 | 550 | 450 | 7.6 |
R51N-36 | 51.0 | 36.0 | 800 | 630 | 7.6 |
R51N-33 | 51.0 | 33.0 | 800 | 630 | 8.4 |
R51S-30 | 51.0 | 30.0 | 930 | 730 | 9.4 |
T76N-49 | 76.0 | 49.0 | 1600 | 1200 | 16.5 |
T76S-45 | 76.0 | 45.0 | 1900 | 1500 | 19 |
Thread direction: Left hand / Right hand | |||||
Thread standsrd: ISO 10208 / ISO1720 / Other international standards | |||||
